init

backup.sh

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+#!/bin/bash
+
+
+# Config
+backup_hosts_location=$PWD/backup_hosts.json
+backup_hosts_file=$(<$backup_hosts_location)
+
+# Backup folder
+backup_folder=$PWD/backups
+
+# Check if the backup folder exists
+if [ ! -d $backup_folder ]; then
+	echo "Backup folder does not exist, trying to create it..."
+	mkdir -p $backup_folder
+
+	if [ ! $? -eq 0 ]; then
+		echo "Could not create Backup folder. Please make sure you have sufficent rights to create $backup_folder"
+		exit 1
+	fi
+fi
+
+# Save the date
+date=`date +%d\-%m\-%Y\_%H\-%M\-%S`
+
+# Delete backups older than three days
+echo "Deleting Backups older than three days..."
+find $backup_folder/* -type d -ctime +3 | xargs rm -rf
+echo "Deleted."
+echo "-------------------------------"
+
+# Create new Backup folder
+mkdir $backup_folder/"$date" -p
+
+# Loop through all backupfolders and convert them
+for row in $(echo "${backup_hosts_file}" | jq -r '.[] | @base64'); do  
+	_jq() {
+		echo ${row} | base64 -d | jq -r ${1}
+	}
+
+	# Check if we have a host, use localhost if not
+	db_host=localhost
+	if [ "$(_jq '.host')" != "null" ]
+		then
+			db_host=$(_jq '.host')
+	fi
+
+	# Check for a user, set to root if none exists
+    db_user=root
+	if [ "$(_jq '.user')" != "null" ]
+		then
+			db_user=$(_jq '.user')
+	fi
+
+	# Check for a user password, set to empty if none exists
+	db_pw=
+	if [ "$(_jq '.password')" != "null" ]
+		then
+			db_pw=$(_jq '.password')
+	fi
+
+	# Check for a database port, set to 3306 if none exists
+	db_port=3306
+	if [ "$(_jq '.port')" != "null" ]
+		then
+			db_port=$(_jq '.port')
+	fi
+
+	# Do the backup
+	echo "Backing up $db_host"
+	mysqldump --all-databases -u ${db_user} -p${db_pw} -h ${db_host} --port ${db_port}  > $backup_folder/"$date"/${db_host}_all-databases.sql
+	if [ $? -eq 0 ]; then			
+		echo "Success."
+	else
+		echo "Error."
+
+		# Delete the file if the backup was not successfull
+		rm $backup_folder/"$date"/${db_host}_all-databases.sql -f
+	fi
+    echo "------------------"
+
+done

backup_hosts.json

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+[
+   {
+      "host":"host1",
+      "user":"root",
+      "password":"1234"
+   },
+   {
+      "host":"host2",
+      "user":"root",
+      "password":"123443"
+   },
+   {
+      "host":"127.0.0.1",
+      "user":"root",
+      "password":"jup2000"
+   },
+   {
+      "user":"root",
+      "password":"123443"
+   }
+]